In this photo taken Monday Sept. 29, 2012, a pair of swans and four cygnets head to a channel and a back pond in the waters of Potter March in Anchorage, Alaska. Trumpeter swans continued a remarkable comeback from near extinction in the Lower 48 states and much of their Alaska habitat, said federal wildlife biologist Deborah Groves, who has counted Alaska swans since 1990. (AP Photo/Dan Joling)
